Colossendeis megalonyx

photo by Arntz, Wolf E.

Family:	Colossendeidae ()
Max. size:	1.6 cm TRKL (male/unsexed)
Environment:	benthic; marine; depth range 3 - 5000 m
Distribution:	Antarctic and Indo-West Pacific.
Diagnosis:	Proboscis is consistently from 1.2 to 1.6 cm trunk length and always has a slight distal down curve. It is swollen both at midpoint and distally. Palp is considerably longer than the proboscis, the seventh segment of which is half as long as the distal two segments which are subequal. Tarsus is always longer than the propodus and the terminal claw is also long (Ref. 9).
Biology:	Abyssal, continental rise, continental shelf (Ref. 1456); continental slope (Ref. 1456 and 19). Feeds exclusively on hydroids (Ref. 121217).
IUCN Red List Status:	Not Evaluated (N.E.) Ref. 123251)
Threat to humans:	harmless
Country info:

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